Question

I have a XML in String variable and I want to pass that value into the parse() of DocumentBuilder.

String xml = "<?xml version="1.0 ....>";
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
Document doc = db.parse(new InputSource(new StringReader(xml)));

But, seems like the last line doesnt work as doc is null.

Is there anything wrong with this? I am just trying take a xml value and convert it to Document.

Thanks for help.

Answer 1

You need something nearer

DocumentBuilderFactory docBuilderFactory = DocumentBuilderFactory.newInstance();
DocumentBuilder docBuilder = docBuilderFactory.newDocumentBuilder();
Document doc = docBuilder.parse(new InputSource(new StringReader(xml)));

You can trim this to:

DocumentBuilder docBuilder = DocumentBuilderFactory.newInstance().newDocumentBuilder();
Document doc = docBuilder.parse(new InputSource(new StringReader(xml)));

Note that normally you’d expect an XML File and it’d be:

DocumentBuilderFactory docBuilderFactory = DocumentBuilderFactory.newInstance();
DocumentBuilder docBuilder = docBuilderFactory.newDocumentBuilder();
Document doc = docBuilder.parse(new File(fullpathtofile));